re: [Flightgear-devel] Update rate of VSI

2003-02-26 Thread David Megginson
Tony Peden writes: Does it matter? FGInterface::update() is not being called, so no data is being exchanged (unless your looking at the FDM specific properties) Right. The problem is just that the elevation changes after the instruments are initialized. All the best, David --

re: [Flightgear-devel] Update rate of VSI

2003-02-25 Thread David Luff
On 2/21/03 at 4:22 PM David Megginson wrote: Danie Heath writes: Something I picked up on the Vertical Speed Indicator if I'm in a climb, and I adjust my flightpath to level flight, it's as if the VSI takes ages to return to the correct position. I've tried of fixing it, but it

re: [Flightgear-devel] Update rate of VSI

2003-02-25 Thread Tony Peden
--- David Luff [EMAIL PROTECTED] wrote: On 2/21/03 at 4:22 PM David Megginson wrote: Danie Heath writes: Something I picked up on the Vertical Speed Indicator if I'm in a climb, and I adjust my flightpath to level flight, it's as if the VSI takes ages to return to the

re: [Flightgear-devel] Update rate of VSI

2003-02-25 Thread David Megginson
Tony Peden writes: It might make more sense for such instruments to have a start here mode. In other words, a mode in which its possible to set the initial value without going through the dynamics modeling. I've added a line to set the internal pressure to ambient pressure at

re: [Flightgear-devel] Update rate of VSI

2003-02-25 Thread Jim Wilson
David Luff [EMAIL PROTECTED] said: It seems to me that one of the big problems with the VSI and the altimeter is that when started on the runway these are still recovering their lags from the very rapid ascent of the trimming routine, a situation that wouldn't happen in real life. Since

re: [Flightgear-devel] Update rate of VSI

2003-02-25 Thread Tony Peden
On Tue, 2003-02-25 at 19:21, Jim Wilson wrote: David Luff [EMAIL PROTECTED] said: It seems to me that one of the big problems with the VSI and the altimeter is that when started on the runway these are still recovering their lags from the very rapid ascent of the trimming routine, a

Re: [Flightgear-devel] Update rate of VSI

2003-02-21 Thread Andy Ross
Gene Buckle wrote: Danie, a VSI is not your typical 100% accurate instrument and it does take time to settle. My flight instructor always told me to never take it as gospel, only as a guideline. If it's hunting a bit, it sounds right to me. It's true that real VSI's have lag. They work by

re: [Flightgear-devel] Update rate of VSI

2003-02-21 Thread David Megginson
Danie Heath writes: Something I picked up on the Vertical Speed Indicator if I'm in a climb, and I adjust my flightpath to level flight, it's as if the VSI takes ages to return to the correct position. I've tried of fixing it, but it seems it's not defined in the XML file for the

Re: [Flightgear-devel] Update rate of VSI

2003-02-21 Thread David Megginson
Andy Ross writes: That said, it does seem to me that the current VSI seeks awfully slowly. It has a half life of, I'd guess, 5-6 seconds or so. Do real gauges take this long? I'll keep an eye on mine this evening and let you know. All the best, David -- David Megginson, [EMAIL

Re: [Flightgear-devel] Update rate of VSI

2003-02-21 Thread David Megginson
David Megginson writes: That said, it does seem to me that the current VSI seeks awfully slowly. It has a half life of, I'd guess, 5-6 seconds or so. Do real gauges take this long? I'll keep an eye on mine this evening and let you know. Sorry -- I forgot to. On the bright